Genus: Edmontosaurus LAMBE, 1917
Etymology: In reference to the Edmonton Formation, in Alberta, Canada, and Greek, sauros, “lizard”: “Edmonton lizard”.

Species: annectens (MARSH, 1892) BRETT-SURMAN vide CHAPMAN & BRETT-SURMAN, 1990
Etymology:

Referred material:

BEECHER, 1902

Locality: Niobrara (Converse) County, Wyoming.

Horizon: Lance (Laramie) Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Skull and fragmentary skeleton.
Note: Pathology on the posteroventral right scapula. An unusual smooth-edged oval-shaped perforation.

 


CARPENTER, (1998) 2000

Locality: Dry Creek, Dawson County, Montana.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

DMNH 1943: Nearly complete specimen.
Note: Pathologic left ilium, and caudal neural spines 13-16 pathologic, possible bitten by a tyrannosaurid.

 


= Thespesius edmontonensis GILMORE, 1924
Etymology:

Referred material:

PARKS, 1935

Locality: 3 miles above Munson ferry and 140 feet above the Red Deer River, near Drumheller, Alberta Province, Canada.

Horizon: Scollard Formation, Uppermost Edmonton Group.

Biostratigraphy:

Age: Lancian Age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.

Material:

ROM 867 (old GSC 5851): Fragmentary skull and skeleton.
Note: Paleopathology, mid-rib with a healed fracture at mid length.